kata-deploy: enable cross build for kata deploy script

kata-deploy-binaries-in-docker.sh is the entry to build kata components.
set some environment to facilitate the following cross build work.

Fixes: #6557
Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>

tools/packaging/kata-deploy/local-build/kata-deploy-binaries-in-docker.sh

@@ -19,6 +19,29 @@ gid=$(id -g ${USER})
 http_proxy="${http_proxy:-}"
 https_proxy="${https_proxy:-}"
 
+ARCH=${ARCH:-$(uname -m)}
+CROSS_BUILD=
+BUILDX=""
+PLATFORM=""
+TARGET_ARCH=${TARGET_ARCH:-$(uname -m)}
+[ "$(uname -m)" != "${TARGET_ARCH}" ] && CROSS_BUILD=true
+
+[ "${TARGET_ARCH}" == "aarch64" ] && TARGET_ARCH=arm64
+
+# used for cross build
+TARGET_OS=${TARGET_OS:-linux}
+TARGET_ARCH=${TARGET_ARCH:-$ARCH}
+
+[ "${CROSS_BUILD}" == "true" ] && BUILDX="buildx" && PLATFORM="--platform=${TARGET_OS}/${TARGET_ARCH}"
+if [ "${CROSS_BUILD}" == "true" ]; then
+       # check if the current docker support docker buildx
+       docker buildx ls > /dev/null 2>&1 || true
+       [ $? != 0 ] && echo "no docker buildx support, please upgrad your docker" && exit 1
+       # check if docker buildx support target_arch, if not install it
+       r=$(docker buildx ls | grep "${TARGET_ARCH}" || true)
+       [ -z "$r" ] && sudo docker run --privileged --rm tonistiigi/binfmt --install ${TARGET_ARCH}
+fi
+
 if [ "${script_dir}" != "${PWD}" ]; then
 	ln -sf "${script_dir}/build" "${PWD}/build"
 fi
@@ -66,6 +89,9 @@ docker run \
 	--env VIRTIOFSD_CONTAINER_BUILDER="${VIRTIOFSD_CONTAINER_BUILDER:-}" \
 	--env MEASURED_ROOTFS="${MEASURED_ROOTFS:-}" \
 	--env USE_CACHE="${USE_CACHE:-}" \
+	--env CROSS_BUILD="${CROSS_BUILD}" \
+	--env TARGET_ARCH="${TARGET_ARCH}" \
+	--env ARCH="${ARCH}" \
 	--rm \
 	-w ${script_dir} \
 	build-kata-deploy "${kata_deploy_create}" $@

tools/packaging/kata-deploy/local-build/kata-deploy-binaries.sh

@@ -38,7 +38,7 @@ readonly rootfs_builder="${repo_root_dir}/tools/packaging/guest-image/build_imag
 readonly jenkins_url="http://jenkins.katacontainers.io"
 readonly cached_artifacts_path="lastSuccessfulBuild/artifact/artifacts"
 
-ARCH=$(uname -m)
+ARCH=${ARCH:-$(uname -m)}
 MEASURED_ROOTFS=${MEASURED_ROOTFS:-no}
 USE_CACHE="${USE_CACHE:-"yes"}"
 
@@ -150,7 +150,7 @@ install_image() {
 		image_type+="-${variant}"
 	fi
 
-	local jenkins="${jenkins_url}/job/kata-containers-main-rootfs-${image_type}-$(uname -m)/${cached_artifacts_path}"
+	local jenkins="${jenkins_url}/job/kata-containers-main-rootfs-${image_type}-${ARCH}/${cached_artifacts_path}"
 	local component="rootfs-${image_type}"
 
 	local osbuilder_last_commit="$(get_last_modification "${repo_root_dir}/tools/osbuilder")"
@@ -197,7 +197,7 @@ install_initrd() {
 		initrd_type+="-${variant}"
 	fi
 
-	local jenkins="${jenkins_url}/job/kata-containers-main-rootfs-${initrd_type}-$(uname -m)/${cached_artifacts_path}"
+	local jenkins="${jenkins_url}/job/kata-containers-main-rootfs-${initrd_type}-${ARCH}/${cached_artifacts_path}"
 	local component="rootfs-${initrd_type}"
 
 	local osbuilder_last_commit="$(get_last_modification "${repo_root_dir}/tools/osbuilder")"
@@ -247,7 +247,7 @@ install_cached_kernel_tarball_component() {
 
 	install_cached_tarball_component \
 		"${kernel_name}" \
-		"${jenkins_url}/job/kata-containers-main-${kernel_name}-$(uname -m)/${cached_artifacts_path}" \
+		"${jenkins_url}/job/kata-containers-main-${kernel_name}-${ARCH}/${cached_artifacts_path}" \
 		"${kernel_version}-${kernel_kata_config_version}-$(get_last_modification $(dirname $kernel_builder))" \
 		"$(get_kernel_image_name)" \
 		"${final_tarball_name}" \
@@ -384,7 +384,7 @@ install_qemu_helper() {
 
 	install_cached_tarball_component \
 		"${qemu_name}" \
-		"${jenkins_url}/job/kata-containers-main-${qemu_name}-$(uname -m)/${cached_artifacts_path}" \
+		"${jenkins_url}/job/kata-containers-main-${qemu_name}-${ARCH}/${cached_artifacts_path}" \
 		"${qemu_version}-$(calc_qemu_files_sha256sum)" \
 		"$(get_qemu_image_name)" \
 		"${final_tarball_name}" \
@@ -495,7 +495,7 @@ install_clh_glibc() {
 install_virtiofsd() {
 	install_cached_tarball_component \
 		"virtiofsd" \
-		"${jenkins_url}/job/kata-containers-main-virtiofsd-$(uname -m)/${cached_artifacts_path}" \
+		"${jenkins_url}/job/kata-containers-main-virtiofsd-${ARCH}/${cached_artifacts_path}" \
 		"$(get_from_kata_deps "externals.virtiofsd.version")-$(get_from_kata_deps "externals.virtiofsd.toolchain")" \
 		"$(get_virtiofsd_image_name)" \
 		"${final_tarball_name}" \
@@ -542,7 +542,7 @@ install_shimv2() {
 
 	install_cached_tarball_component \
 		"shim-v2" \
-		"${jenkins_url}/job/kata-containers-main-shim-v2-$(uname -m)/${cached_artifacts_path}" \
+		"${jenkins_url}/job/kata-containers-main-shim-v2-${ARCH}/${cached_artifacts_path}" \
 		"${shim_v2_version}" \
 		"$(get_shim_v2_image_name)" \
 		"${final_tarball_name}" \